Pick out the wrong statement?

Thermodynamics for Chemical 27/08/2020

A. The values of (∂P/∂V)T and (∂2P/∂V2)T are zero for a real gas at its critical point
B. Heat transferred is equal to the change in the enthalpy of the system, for a constant pressure,
non-flow, mechanically reversible process
C. Thermal efficiency of a Carnot engine depends upon the properties of the working fluid
besides the source & sink temperatures
D. During a reversible adiabatic process, the entropy of a substance remains constant

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